Answer:
Because the Sunni muslims thought Abu Bakr should be leader after Muhammad's death but the Shi'a believed Ali was leader after Muhammad's death. Also, Muhammad was the seal of prophets.
Answer: After the death of Prophet Muhammed, Muslims had a disagreement. Sunnis believed that Muhammed's successor should be Abu Bakr and Omar, and the Shias believed that his successor should be Ali.
Step-by-step explanation:
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